Mathematics, 28.08.2019 12:20 yah2muchh
The price-earnings ratios of a sample of stocks have a mean value of 12.5 and a standard deviation of 1. if the ratios have a mound-shaped, symmetric distribution, using the empirical (68-95-99.7) rule, what can we say about the proportion of ratios that fall between:
a. 11.5 and 15.5?
b. 10.5 and 14.5?
c. in what interval would we expect to find 99.7% of price-earnings ratios?
Answers: 1
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The price-earnings ratios of a sample of stocks have a mean value of 12.5 and a standard deviation o...
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